Conrad, T. A. (1855). Description of the fossil shells. In: United States. War Department (1853-1856). Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. 5: 317-328.
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Conrad, T. A.
1855
Description of the fossil shells. In: United States. War Department (1853-1856)
Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean.